Question

y =7x^ 4 -5x^ 3 +6x=

Answer 1

Ответ:

$y = 7x {}^{4} - 5x {}^{3} + 6x \\ y = \frac{d}{dx} (7x {}^{4} - 5x {}^{3} + 6x) \\ y = \frac{d}{dx} (7 {x}^{4} ) + \frac{d}{dx} ( - 5 {x}^{3} ) + \frac{d}{dx} (6x) \\ y = 7 + 4 {x}^{3} - 5 \times 3x {}^{2} + 6 \\ y = 28 {x}^{3} - 15 {x}^{2} + 6$